Window construction



Nov. 27, 1951 G. T. CLEMENTS 2,576,777

wmnow CONSTRUCTION Filed Feb. 25, 1950 2 SHEETS-SHEET 1 I N V EN TOR, $501966 2' 62 awn/rs Wag 14 fro/we 5 G. T. CLEMENTS wmnow CONSTRUCTION 2 SHEETS-SHEET 2 Filed Feb. 23, 1950 INVENTOR. Gama: T62 EMA-firs Patented Nov. 27; 1951 UNITED STATES PATENT OFFICE WINDOW CONSTRUCTION George T. Clements, Detroit, Mich.

Application February 23, 1950, Serial No. 145,663

9 Claims. (01. 160-40) This invention relates generally to window construction and more particularly to a means for sealing and insulating a window casement.

A knowledge of the prior art reveals that the problem of providing a satisfactory seal between the stationary portion of a casement and the swingable or slidable sash therein has long plagued the building industry. This is especially true of metal construction where no attempt is made to seat accurately the cooperating frame members of the stationary casement and movable sash panels.

This situation is further aggravated because of the manner in which the frame members warp and twist out of alignment as a result of distorting stresses set up during installation or occasioned by subsequent changes in temperature. Because of this distortion; all installations of metal sash must be constantly re-aligned to prevent large gaps from appearing between stationary and movable frame members and producing excessive drafts.

This periodic adjustment of metal sash is both costly and troublesome, and regardless of how carefully the operation is performed, it can never produce a satisfactory and effective seal between the easement and movable sash panels. It is for this reason, primarily, that metal window casements have never received the degree of acceptance in non-commercial construction that was originally predicted for them. However, I once this shortcoming has been rectified, it is certain that with the structural advantages this type of casement has to offer, it will be greatly preferred by the home builder over the conventional old type of sliding wood sash.

It is therefore the primary object of the invention to provide an effective and efficient seal between the stationary and movable portions of a window.

Another object of the invention is the provision of a draft free and dust tight seal between the stationary casement and the movable sash of a window.

Still another object of the invention is to provide a draft free and dust tight resilient seat for movable window sash that will adjust automatically to compensate for any deformities or irregularities in cooperating members of both the sash and casement.

Yet another object of the invention is the provision of a window screen having a convenient and effective means for sealing the movable sash in the easement.

A further object of the invention is the provision of a frame for attachment to a metal window casement, providing both an integral screen and a draft free and dust tight seat for each of the movable sash members.

A still further object of the invention is the provision of a frame adapted for mounting on metal easements so as to provide both a draft free and dust tight seat and a detachable screen panel for each of the movable sash members.

Additional features and advantages of the invention will become apparent after a thorough consideration of the detailed description composed with reference to the accompanying drawings constituting a part of this application, and in which:

Fig. 1 is an elevation view of a metal window casement embodying the applicants invention.

Fig. 2 is an enlarged section view taken substantially on plane 22 in Fig. 1 illustrating the preferred embodiment of the invention.

Fig. 3 is a section view, similar to Fig. 2, showing a modification of the invention detached from the window casement.

Fig. 4 is a section view similar to Fig. 3, showing a further modification of the invention also detached from the window casement.

Broadly stated the invention contemplates the provision of a molding adapted to be mounted on the stationary window casement so as to provide a resilient surface for seating movable sash members. More particularly the invention comprehends the production of a frame attachable to the inside of a metal window casement providing both a resilient surface for seating swingable sash members and a screen panel, either integral or detachable as desired, for each of the movable sash.

For a detailed description of the invention, reference is made to Fig. 1 of the drawings in which numeral l0 designates a metal casement having a pair of outwardly swingable sash 2 and [4 each supported at the outer edge by two spaced hinge members such as IS. A pair of frames is and 213 arefitted around each opening in the easement I0 and held securely in position by a plurality of spaced locating and locking clamps such as 22.

The frames I8 and 20 are constructed of molding having a pair of channels 24 and 26 defined by marginal flanges 28 and 30 res ectively and separated by a common divider wall 32. A pair of oppositely disposed retaining lips 34 and 35 are provided along the free edge of the divider wall and flange 32 and 28 respectively, for reasons which will a pear later in the discussion. A screen 86 is fitted over each of the frames l8 and symmetrical cross section so that it could be rotated should the exposed portion ever deteriorate -or become worn.

To facilitate this rotation, the molding is designed so that the downwardly disposed 'lips34 and on the flange and wallmembers 28,and 32 respectively hold the resilient cord securely 'in position without the use of any adhesive. Therefore, when it is desired to rotate the resilient strip 40 it may be done by the simple expedient of .manually removing'the cord and reinserting sit with a new surface exposed. This feature enables the installation to be maintained and serviced with no excessive time consuming operations or costly replacements.

' This completes a description of the structural details comprising the preferred embodiment of the disclosed invention; however, to facilitate a more thorough comprehension of thesu-bjectmatter involved, the additional embodiments illustrated will bediscussed in detail.

The modification shown in Fig. 3 differs from the preferred embodiment in that the screen 35 is mounted on a detachable grooved frame 46 se- I cured to the easement molding by a plurality of spaced clamps such as 48. The cross section of the molding is also modified slightly so as to provide a recessed seating shoulder for supporting and locating a removable screen frame 46. In all other respects, the modification illustrated in Fig. 3 is similar in both structure and operation to the preferred embodiment shown in Fig. 2.

The further modification illustrated in Fig. 4 differs structurally from the modification showni-n Fig. 3 in that the shallow channel 25 provided by the casement molding is outwardly disposed.

This design is somewhat more flexible, as it provides for mounting the screen material 36 alternately in the shallow channel 26, as in the preferred embodiment of Fig. 2, without the necessity of removing the molding from the easement Hi.

This completes a discussion of the structural details relating to the invention; however, to

insure a better understanding of the subject matter, a discussion will now be directed to the manner in which the device operates so as to perform its intended function and accomplish the ob- :iectives set forth in the introductory portion of 1;

the specification.

In operation, when the swingable sash l2 and M are moving to a closed position, the frame members of the sash engage the outer surface of the resilient cord 40. When the sash l2 and M reach the closed position illustrated in Figures 1 and 2, the resulting pressure on the resilient cord 40 forces it into a simultaneous'sealing engagement at 42 and 44 with the frame members of the casement and sash l0 and M respectively.

This action produces a double seal and renders the joint between cooperating sash and casement members substantially draft free and dust tight. The disclosed method of sealing the swingable sash l2 and M on resilient material also prevents 4 any irregularities or distortion in the individual sash or casement members from producing the troublesome air gaps present on all installations of metal easements.

In practice, the installation of inside screens on a metal casement is greatly simplified by use of the applicants invention, because allowable tolerance on the dimensions of both casement openings and screen can be increased appreciably without producing objectional air gaps. This is due entirely to the resilient action of the cord 48 against the inner edge of the frame members defining the openings in the casement It.

.From the foregoing discussion, it is evident that the applcants structure makes possible the realization of all the extravagant objectives previously set forth. The applicant accordingly feels that he has fulfilled a long felt need in the building trade, and in so doing, has made a real, lasting and extremely valuable contribution to the window construction art. However, while the invention has been described with reference to the structural details .of a limited number of embodiments, it will be appreciated by those skilled in the art, that the principles involved are susceptible of numerousother applications.

Therefore, what I claim asnew and wish to secure by Letters Patent is: v

1. In window construction, acasement having at least one movable sash, a frame detachably mounted on the window casement, means on the frame providing a resilient seat for the movable sash and .a screen covered frame detachably casement, strips of resilient materialon the frame providing a seat for the movable sash and a screen covered frame detachably mounted on the first mentioned frame.

4. .In window construction, a casement having at least one movable sash, a frame for the movable sash detachably mounted on the inner side of the casement and having a pair f open channels, resilient cord in one of the channels adapted to provide a seat for the movable sash and screen on the frame secured in the other channel.

5. In window construction, a casement having at least one movable sash, a framefor the movable sash detachably mounted on the inner side of the easement and having a pair of outwardly opening channels, resilient cord in one of the channels providing a seat for the movable sash and screen on the frame secured in the other channel.

6. In window construction, a casement having at least one swingable sash, a frame for the swingable sash detachably mounted on the inner side mounted on the inner side of the easement and resilient means on the frame providing a seat for the movable sash when the latter is in a closed position and deforming simultaneously with the closing of the sash whereby the sash engages the easement along the edge defining the opening therein.

8. A rail comprising an elongated member, a longitudinally extended channel in the member,

a resilient cord in the channel and a second chanl0 nel having a removable spline for holding screen material.

9. A rail comprising an elongated member having therein alongitudinally extended channel,

6 oppositely disposed lips overhanging the channel and a resilient cord in such channel adapted to be removably secured therein by means of the overhanging lips.

GEORGE T. CLEMENTS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,866,882 Dixon July 12, 1932 2,378,163 Thomas June 12, 1945 

